>E-mail Confirmation:
Enable/disable email confirmation of new registered accounts. A special URL will be sent in the welcome email upon registration.

Also be aware that users may have notifications turned off.

thanks for that but I think i have it correct but no one is getting emails to notify them of PM's, to notify them of replies to messages posted or to get them to confirm their registration after I approve the new user. I have to toggle the Email notification manually so they can post messages.